It’s not easy. You can Google it and find several methods, mostly you have to read through forum posts to put it all together. In essence it involves finding a PS2 (I think?) that has an SACD drive and never had its firmware updated, or finding 1 of 3 different DVD players – specific models – and hijacking their boot-up into a thumb drive that runs a script to extract the DSD from the SACD.
It’s…not…like…using…Roon.